Share your phone with friends or family members? You can now create multiple user profiles to keep your personal apps, contacts and photos separate from theirs. There is also a guest mode for temporary users.

There are other options if you don't want to enter guest mode every time you let someone play a game or use the dialer app. A new feature in Android 5.0 Lollipop lets you pin a specific app to the home screen.

The Quick Settings menu in Android 5.0 Lollipop has been improved. There is now a slider so you can quickly adjust the brightness, an rotation lock option and a built-in flashlight, among other features.

Previous versions of Android included an automatic brightness feature, which would automatically adjust your brightness depending on your environment.

The feature has now been replaced with an "Adaptive brightness" mode. This is similar to the auto-mode, but you still have the ability to choose your own brightness. Once you have set a base brightness, the adaptive mode will then adjust it based on your surroundings.

One feature you won't see on the surface of the Android 5.0 update is the move to the new Android Runtime, known as ART. In short, the new runtime improves the performance of your device and helps optimize battery life.

In addition to battery improvements, Android 5.0 gives you more information on your battery life. Going to Settings and selecting Battery will give you an estimated time of how much longer your battery will last.

After you plug your phone in, it will give you an estimate on how long it will take the battery to be fully charged.

The Android Beam sharing feature that was first introduced with Android 4.0 Ice Cream Sandwich has been improved with the release of Lollipop. Users could previously only share Web links, contact info, directions and YouTube videos, but now you can share anything with just a tap.

Simply select what you would like to share, place two Android phones with NFC back-to-back, and either tap the screen or choose Android Beam from the sharing menu.

You can also use NFC to copy data (such as apps and settings) from an old Android device to a new one. To learn more about this feature, check out this article.

One of my favorite features in Android 5.0 is the new notification system. Notifications will no longer interrupt you when playing a game or watching a movie. Text messages, phone calls and other notifications will now briefly appear at the top of the screen. You can choose to act on the notification or simply swipe it away.

The mobile game Flappy Bird took the world by storm in 2014. After reaching the top of the charts, the game was suddenly removed by its creator from the Google Play Store. As a homage to the game, Google added a Flappy Bird-inspired Android version as an Easter egg in Lollipop.